1) q: a: if 5 + x = 12, and you add -5 to the left side of equation, what should you add to right side of equation

You can "add" like you say or you could just call it subtracting. If you subtract 5 from 5 you still get zero.  Then on the right side, you would do the same. You would subtract 5 from 12 getting x, which is 7.

If you added you would still get the same answers but it is easier to say just subtract. Anything you do to the left, do to the right.

Hope this helps :)

You can "add" like you say or you could just call it subtracting. If you subtract 5 from 5 you still get zero.  Then on the right side, you would do the same. You would subtract 5 from 12 getting x, which is 7.If you added you would still get the same answers but it is easier to say just subtract. Anything you do to the left, do to the right.

see explanation

step-by-step explanation:

since the sequence is geometric there is a common ratio r between consecutive terms, that is

r = 4 ÷ - 2 = - 2

r = - 8 ÷ 4 = - 2

r = 16 ÷ 8 = - 2

the next term - 13 must be incorrect as it should be - 32 for the sequence to be geometric.

the first 4 terms are therefore geometric with common ratio r = - 2

two data sets with the same median will not have the same varaibility

step-by-step explanation: